19 Feb
2018
19 Feb
'18
2:27 p.m.
Hi all,
Inspired by CuriousMarc's recent video, I cleaned and fixed my RL02
heads. Not with an ultrasonic cleaner unfortunately, but in a warm IPA
bath. It worked! Loading a crashed pack is obviously not a good idea,
although I cleaned the cartridge well, and figured with bad heads and a
bad pack, I might as well try it. The heads no longer crash and appear
clean after loading, but the cartridge, of course, cannot be read as the
first track has been destroyed from the initial crash. I think the crash
was cause by bad heads before I got the RL02 drive.
I posted some pictures of the process here:
http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-RL02-heads.html
I am wondering if anyone would be willing to sell me an RL02K cartridge
for a sensible price?
After the cleaning I am guessing my alignment will be slightly off, but
from what I have read in the manual, this is will
probably just result
in the read/write speed being reduced as the heads have to move
slightly
when switching between either side of the platter. Am I right in
thinking this or completely wrong?
Thanks,
Aaron.
--
Aaron Jackson
PhD Student, Computer Vision Laboratory, Uni of Nottingham
http://aaronsplace.co.uk
19 Feb
19 Feb
2:58 p.m.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Aaron
Jackson via cctalk
Sent: 19 February 2018 22:28
To: cctalk at classiccmp.org
Subject: Seeking RL02K cartridge
Hi all,
Inspired by CuriousMarc's recent video, I cleaned and fixed my RL02 heads.
Not
with an ultrasonic cleaner unfortunately, but in a
warm IPA bath. It
worked!
Loading a crashed pack is obviously not a good idea,
although I cleaned
the
cartridge well, and figured with bad heads and a bad
pack, I might as well
try
it. The heads no longer crash and appear clean after
loading, but the
cartridge,
of course, cannot be read as the first track has been
destroyed from the
initial
crash. I think the crash was cause by bad heads before
I got the RL02
drive.
I posted some pictures of the process here:
http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-RL02-heads.html
Looking at the pictures of the heads before and after I am struggling to see
a difference. What am I looking for?
Regards
Rob
I am wondering if anyone would be willing to sell me
an RL02K cartridge
for a
sensible price?
After the cleaning I am guessing my alignment will be slightly off, but
from
what I have read in the manual, this is will probably
just result in the
read/write
speed being reduced as the heads have to move slightly
when switching
between either side of the platter. Am I right in thinking this or
completely
wrong?
Thanks,
Aaron.
--
Aaron Jackson
PhD Student, Computer Vision Laboratory, Uni of Nottingham
http://aaronsplace.co.uk
3:03 p.m.
I posted some pictures of the process here:
http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-RL02-heads.html
Looking at the pictures of the heads before and after I am struggling to see
a difference. What am I looking for?
Regards
Rob 
20 Feb
20 Feb
3:07 p.m.
Hi Aaron,
I have some extra RL02 packs and would be glad to lend you a pack for
free if you like; maybe for keeps. But you're probably not on the same
continent as me, so shipping would probably be costly. If you have no
better offers, let me know and we'll work it out. Can also put bits on it
if it'd be advantageous to have something written on it beforehand.
--jake (in Pennsylvania, USA)
On Mon, Feb 19, 2018 at 6:03 PM, Aaron Jackson via cctalk <
cctalk at classiccmp.org> wrote:
Looking at the pictures of the heads before and after I am struggling to see
>
> I posted some pictures of the process here:
>
> http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-
RL02-heads.html
a difference. What am I looking for?
Regards
Rob
If you click on the image and load the full sized image, you should be
able to see some orange stuff from the coating on the platter on the
heads. There isn't a lot, but it was enough to crash when I loaded a
pack it seems. Cleaning with IPA and swabs, without the heat, wasn't
enough to get it off.
Best,
Aaron
3:37 p.m.
Hi Aaron,
I have some extra RL02 packs and would be glad to lend you a pack for
free if you like; maybe for keeps. But you're probably not on the same
continent as me, so shipping would probably be costly. If you have no
better offers, let me know and we'll work it out. Can also put bits on it
if it'd be advantageous to have something written on it beforehand.
Thanks for the offer Jake! Hopefully something in the UK turns up but if
not I may be in touch :)
Aaron
3:42 p.m.
Where in PA? I live on the south -eastern corner near the u of Delaware (
Newark, del.)
Bill
On Feb 20, 2018 6:07 PM, "Jacob Ritorto via cctalk" <cctalk at
classiccmp.org>
wrote:
Hi Aaron,
I have some extra RL02 packs and would be glad to lend you a pack for
free if you like; maybe for keeps. But you're probably not on the same
continent as me, so shipping would probably be costly. If you have no
better offers, let me know and we'll work it out. Can also put bits on it
if it'd be advantageous to have something written on it beforehand.
--jake (in Pennsylvania, USA)
On Mon, Feb 19, 2018 at 6:03 PM, Aaron Jackson via cctalk <
cctalk at classiccmp.org> wrote:
to
>
> I posted some pictures of the process here:
>
> http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-
RL02-heads.html
>>
> Looking at the pictures of the heads before and after I am struggling see
a difference. What am I looking for?
Regards
Rob
If you click on the image and load the full sized image, you should be
able to see some orange stuff from the coating on the platter on the
heads. There isn't a lot, but it was enough to crash when I loaded a
pack it seems. Cleaning with IPA and swabs, without the heat, wasn't
enough to get it off.
Best,
Aaron
4:06 p.m.
I'm on the western side of the state, mid-way up, 5 minutes from the Ohio
line.
I have an old church building with maybe ten pdp11s and VAXen and would
like to host a pdp11 programming / work session / mixer someday if I can
get the space into a presentable state!
On Tue, Feb 20, 2018 at 6:42 PM, Bill Degnan <billdegnan at gmail.com> wrote:
Where in PA? I live on the south -eastern corner near
the u of Delaware (
Newark, del.)
Bill
On Feb 20, 2018 6:07 PM, "Jacob Ritorto via cctalk" <cctalk at
classiccmp.org>
wrote:
Hi Aaron,
I have some extra RL02 packs and would be glad to lend you a pack for
free if you like; maybe for keeps. But you're probably not on the same
continent as me, so shipping would probably be costly. If you have no
better offers, let me know and we'll work it out. Can also put bits on it
if it'd be advantageous to have something written on it beforehand.
--jake (in Pennsylvania, USA)
On Mon, Feb 19, 2018 at 6:03 PM, Aaron Jackson via cctalk <
cctalk at classiccmp.org> wrote:
to
>
> I posted some pictures of the process here:
>
> http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-
RL02-heads.html
>>
> Looking at the pictures of the heads before and after I am struggling see
a difference. What am I looking for?
Regards
Rob
If you click on the image and load the full sized image, you should be
able to see some orange stuff from the coating on the platter on the
heads. There isn't a lot, but it was enough to crash when I loaded a
pack it seems. Cleaning with IPA and swabs, without the heat, wasn't
enough to get it off.
Best,
Aaron
4:31 p.m.
And I live east of Scranton.
bill
On 02/20/2018 06:42 PM, Bill Degnan via cctalk wrote:
Where in PA? I live on the south -eastern corner near
the u of Delaware (
Newark, del.)
Bill
On Feb 20, 2018 6:07 PM, "Jacob Ritorto via cctalk" <cctalk at
classiccmp.org>
wrote:
> Hi Aaron,
> I have some extra RL02 packs and would be glad to lend you a pack for
> free if you like; maybe for keeps. But you're probably not on the same
> continent as me, so shipping would probably be costly. If you have no
> better offers, let me know and we'll work it out. Can also put bits on it
> if it'd be advantageous to have something written on it beforehand.
>
> --jake (in Pennsylvania, USA)
>
>
> On Mon, Feb 19, 2018 at 6:03 PM, Aaron Jackson via cctalk <
> cctalk at classiccmp.org> wrote:
>
>>>> I posted some pictures of the process here:
>>>>
>>>> http://aaronsplace.co.uk/blog/2018-02-19-repairing-crashed-
>> RL02-heads.html
>>> Looking at the pictures of the heads before and after I am struggling
> to
>> see
>>> a difference. What am I looking for?
>>>
>>> Regards
>>>
>>> Rob
>> If you click on the image and load the full sized image, you should be
>> able to see some orange stuff from the coating on the platter on the
>> heads. There isn't a lot, but it was enough to crash when I loaded a
>> pack it seems. Cleaning with IPA and swabs, without the heat, wasn't
>> enough to get it off.
>>
>> Best,
>> Aaron
>>
2275
days inactive
2277
days old
7 comments
5 participants
participants (5)
-
aaron＠aaronsplace.co.uk -
bill.gunshannon＠hotmail.com -
billdegnan＠gmail.com -
jacob.ritorto＠gmail.com -
robert.jarratt＠ntlworld.com